1Marine Engineering Department, Institute of Technology, Sepuluh Nopember Surabaya, Indonesia.
2Faculty of Mechanical Engineering, University Malaysia, Pahang, 25000 Kuantan, Malaysia.
Diesel engines fuel injection pressure is most important aspect. The diesel engine selected in this study such as fuel direct injection is generated from the unit pump system. Effect of fuel injection pressure on engine performance is investigated and analyzed in the study. Experiments are performed on a fourcylinder two-stroke, direct injection diesel engine. The diesel engine power performance values such as indicated pressure, indicated horse power, shaft horse power, brake horse power, break mean effective pressure and fuel consumption investigated both of variation engine speeds - fixed load and fixed engine speed – variation loads by the fuel injection pressure variation. Based on the experiment results, the best performance of the pressure injection is obtained. The experiment results shown, that the increasing injection pressures have been given increased of engine power and fuel consumption of the diesel engine.
Diesel engine, engine performance, fuel consumption, fuel injection pressure
